Not really a tutorial, just a process of how I painted my Venom
a freestyle tutorial on a lot of the techniques that I use for my signatures
Dom Troop Tutorial
A tutorial on how I made the Dom Troop Signature
a good selection of tutorials for photoshop, but some of the links don't work sometimes
same as good-tutorials, but it also has tutorials for a lot of other graphics programs
a tutorial for people who have a tablet and wish to explore the wonders of digital painting, tutorial courtesy of one of my favourite artists, idnar.
another very good site for digital painting tutorials
that's all I know for photoshop tutorials. I'll add some of my own once I have time (and learn how to make one). Well then, until the next time I update.